7 months after stapedectomy

Hello,
I had my stapedectomy (my right ear)7 months ago. Everything was great. In the first month, I had problems about hearing likeeveryone else. The sounds were bionic, I had very loud ringing. But after 4 weeks, everything began to be better. But this month, I mean after 6 months, I feel something strange in my ear; ringing (it had never gone, but now it's worse) , something like fullness, pressure in my ear. Sometimes I feel as if I hear nothing,generally I feel that I hear worse when I compare my hearing with the last months. Is there anyone else feeling like this or how do you feel after 6-7 months after the operation? Do you still feel the ringing? I know my hearing is better, because before the operation, I was hearing my pulse and the ringing was worse, but I am really worried about it now, can the prothesis slip or can something else happen? ( 2 months ago, I saw my doc, he said my hearing is great, after 5 years I can go to see him for another check, because he said evertyhing is better and he expected that, also my hearing test was ok) Please help me who had the stapedectomy 6-7 months ago. How do you feel? Can smoking affect it?